Dzikri Syaefullah, - (2019) ANALISIS HASIL PENGUJIAN TAHANAN ISOLASI TRANSFORMATOR DAYA BERDASARKAN UJI INDEKS POLARISASI DAN TANGEN DELTA DI PT. PLN (PERSERO) TJBT APP CIREBON. D3 thesis, Universitas Pendidikan Indonesia.
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Abstract
ABSTRAK Transformator merupakan peralatan utama dalam sistem tenaga listrik yang berhubungan langsung dengan sistem transmisi dan distribusi listrik. Salah satu bagian penting dari transformator daya adalah sistem isolasinya. Seiring dengan usia dan pengoprasiannya kondisi isolasi dapat mengalami kerusakan yang dapat menyebabkan kegagalan operasi. Tujuan dari penelitian ini untuk mengetahui kondisi kualitas isolasi transformator daya. Metode dalam penelitian ini berupa observasi dan studi literatur. Sedangkan lokasi penelitian di PT. PLN (Persero) TJBT APP Cirebon. Data yang diambil berupa hasil pengujian indeks polarisasi dan pengujian tangen delta. Setelah data terkumpul selanjutnya dilakukan perhitungan dan analisis indeks polarisasi dan tangen delta. Analisis pengujian indeks polarisasi dengan metode primer-ground, sekunder-ground, tertier-ground, primer-sekunder, sekunder-tertier, dan primer-tertier. Hasil pengujian dan perhitungan indeks polarisasi tersebut menunjukan kondisi yang bagus atau sesuai dengan standar. Ada pengujian dengan enam mode yang akan diuji tangen delta yaitu hubungan antara CH, CHL, CL, CT, CHT, dan CLT. Hasil pengujian 5 mode tangen delta lain sesuai standar dan hasil pengujian dan perhitungan tangen delta mode Capacitance low (CL) menunjukan terjadinya pemburukan sebesar 0,5-0,7%, namun trafo masih layak dioperasikan. Kata Kunci : Tahanan Isolasi, Indeks Polarisasi, Tangen Delta ------- Transformers are the main equipment in electric power systems that are directly related to electricity transmission and distribution systems. One important part of the power transformer is the insulation system. As the age and operation of the insulation conditions can experience damage that can cause operation failure. The purpose of this study was to determine the condition of the quality of insulation of power transformers. The method in this study is in the form of observation and literature study. Whereas the research location at PT PLN (Persero) TJBT APP Cirebon. The data taken is the result of testing the polarization index and testing the delta tangent. After the data is collected, the polarization index and delta tangent are calculated and analyzed. Analysis of polarization index testing with primary-ground, secondary-ground, tertiary-ground, primary-secondary, secondary-tertiary, and primary-tertiary methods. The test results and calculation of the polarization index show good conditions or in accordance with standards. There are tests with six modes that will be tested for delta, namely the relationship between CH, CHL, CL, CT, CHT, and CLT. The test results of 5 other delta tangent modes are in accordance with the standard and the test results and the tangent delta mode Capacitance low (CL) calculation show a deterioration of 0.5-0.7%. However, the transformer is still feasible to operate. Keywords: Isolation Resistance, Polarization Index, Tangen Delta
| Item Type: | Thesis (D3) |
|---|---|
| Uncontrolled Keywords: | Tahanan Isolasi, Indeks Polarisasi, Tangen Delta |
| Subjects: | L Education > L Education (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Fakultas Pendidikan Teknologi dan Kejuruan > Jurusan Pendidikan Teknik Elektro > Program D3 Teknik Elektro |
| Depositing User: | Dzikri Syaefullah |
| Date Deposited: | 29 Apr 2020 07:10 |
| Last Modified: | 29 Apr 2020 07:10 |
| URI: | http://repository.upi.edu/id/eprint/39395 |
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